%0 Journal Article %T Sobre uma nova esp¨¦cie neotr¨®pica do g¨ºnero Larsia Fittkau, 1962 (Diptera: Chironomidae: Tanypodinae) %A Serpa-Filho %A Arlindo %J Entomolog¨ªa y Vectores %D 2005 %I Scientific Electronic Library Online %R 10.1590/S0328-03812005000200013 %X this work presents the description of a new of the genus larsia fittkau, 1962 (diptera: chironomidae: tanypodinae). the genus until the moment it is represented by 23 species in the world. in the neotropical region, according to spies & reiss (1996) four species were already described, being three from guatemala, l. fittkaui sublette & sasa, 1994, l. planensis johannsen, 1946, l. reissi sublette & sasa, 1994 and only from argentina, l. pallescens edwards, 1931. the new species was collected in the state of rio de janeiro, coming from araras, municipal district of petr¨®polis, rj, being the first registration of the genus from brazil. the slides with the material type are deposited in the entomological collection of the instituto oswaldo cruz. %K tanypodinae %K larsia %K new species %K rio de janeiro %K brazil. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0328-03812005000200013&lng=en&nrm=iso&tlng=en